feat: implement multi-part/playlist support and fix IPC crashes

package.json

@@ -0,0 +1,37 @@
+{
+    "name": "video-downloader",
+    "version": "1.0.0",
+    "description": "Video stream downloader with format detection",
+    "main": "main.js",
+    "scripts": {
+        "start": "electron .",
+        "postinstall": "electron-builder install-app-deps"
+    },
+    "build": {
+        "appId": "com.madapes.mediadownloader",
+        "productName": "madapes Media Downloader",
+        "directories": {
+            "output": "dist"
+        },
+        "extraResources": [
+            "resources/**"
+        ],
+        "mac": {}
+    },
+    "keywords": [
+        "video",
+        "downloader",
+        "stream",
+        "hls",
+        "dash"
+    ],
+    "author": "",
+    "license": "MIT",
+    "dependencies": {
+        "electron": "^28.0.0",
+        "yt-dlp-wrap": "^2.3.8"
+    },
+    "devDependencies": {
+        "electron-builder": "^24.9.1"
+    }
+}